Nippon Columbia Co., Ltd.

Nippon Columbia Kabushikikaisha (nippon Columbia Co., Ltd.)

Naohisa Aoki

Hideaki Hayashi

Hitoshi Matsuda

Akira Matui

Akira Matuki

In a moving-coil type pickup cartridge, a vibrating system including an armature wound with a coil is disposed at an open end area of a magnet with a damper being interposed between the armature and the magnet, and the armature is placed directly under the influence of magnetic flux produced between the one and other ends of the magnet for generating a voltage without using any yoke.

Moving-coil type pickup cartridge

In a moving-coil type pickup cartridge, a vibrating system including an armature wound with a coil is disposed at an open end area of a magnet with a damper being interposed between the armature and the magnet, and the armature is placed directly under the influence of magnetic flux produced between the ends of the magnet for generating a voltage without using any yoke. The magnet is a hollow cylinder having its interior free of any other magnet material.

Moving coil type pickup cartridge

This invention relates to a complex resonance type pickup tone arm in which a damping member is disposed at the middle of the arm to damp low and middle frequency resonances so that the tip of the arm is prevented from being bent down.

Growing community of inventors

Mitaka, Japan

Naohisa Aoki